com.opensymphony.xwork2.validator.validators
Class ExpressionValidator

java.lang.Object
  com.opensymphony.xwork2.validator.validators.ValidatorSupport
      com.opensymphony.xwork2.validator.validators.ExpressionValidator

All Implemented Interfaces:

ShortCircuitableValidator, Validator

public class ExpressionValidator
extends ValidatorSupport

A Non-Field Level validator that validates based on regular expression supplied.

• expression - the Ognl expression to be evaluated against the stack (Must evaluate to a Boolean)

 
     <validators>
           <validator type="expression">
              <param name="expression"> .... </param>
              <message>Failed to meet Ognl Expression  .... </message>
           </validator>
     </validators>
 
 

Author:

Jason Carreira

Field Summary

Fields inherited from class com.opensymphony.xwork2.validator.validators.ValidatorSupport

defaultMessage, log, messageKey

Constructor Summary

ExpressionValidator()

Method Summary

String	getExpression()
void	setExpression(String expression)
void	validate(Object object) The validation implementation must guarantee that setValidatorContext will be called with a non-null ValidatorContext before validate is called.

Methods inherited from class com.opensymphony.xwork2.validator.validators.ValidatorSupport

addActionError, addFieldError, conditionalParse, getDefaultMessage, getFieldValue, getMessage, getMessageKey, getMessageParameters, getParse, getValidatorContext, getValidatorType, isShortCircuit, setDefaultMessage, setMessageKey, setMessageParameters, setParse, setShortCircuit, setValidatorContext, setValidatorType, setValueStack

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ExpressionValidator

public ExpressionValidator()

Method Detail

setExpression

public void setExpression(String expression)

getExpression

public String getExpression()

validate

public void validate(Object object)
              throws ValidationException

Description copied from interface: Validator

The validation implementation must guarantee that setValidatorContext will be called with a non-null ValidatorContext before validate is called.

Parameters:

object - the object to be validated.

Throws:

ValidationException - is thrown if there is validation error(s).